Modified CMT_MBM example app to exit immediately on receiving SIGINT signal.
Modified CMT_MBM example app to exit immediately on receiving SIGINT signal.

Change-Id: I76757fb5f862f5c4ee4a7ab9274c57e65e1bfbe6

01org/intel-cmt-cat,01org/intel-cmt-cat,01org/intel-cmt-cat